iPadOS 9.9.11.1.1 (build 15B150) is an official Apple over-the-air update for the iPad Air (China), released on 2017-11-09T18:04:13Z. The update package is 1.47 GB. This is a delta (partial) update that requires 8.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 21398b37a5c2e130eeaf99d187a4720f6b804999.zip.